Finding the Fourth Proportional to 326,888.05, 451,142.12 and 197,897.62
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Solution
The fourth proportional to 326,888.05, 451,142.12 and 197,897.62 is: 273,120.88
Step by Step Solution
- Step 1: Write the proportion equation
326,888.05 : 451,142.12 = 197,897.62 : x - Step 2: Convert to fraction form
326,888.05/451,142.12 = 197,897.62/x - Step 3: Cross multiply
326,888.05x = 451,142.12 × 197,897.62 - Step 4: Simplify right side
326,888.05x = 89,279,951,829.75 - Step 5: Solve for x
x = 89,279,951,829.75/326,888.05 - Step 6: Final answer
x = 273,120.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.